Inorganic Chemistry Answers

A helium gas cylinder of the sort used to fill balloons has a volume of 180 L and and a pressure of 2200 psi ( 150 atm) at 25° C. How many moles of helium are in the tank? How many grams?

For the reaction H2(g) + l2(g) = 2 HI(g), equilibrium concentrations at 25°C are [H2] = 0.0510 mol/L, [ I2] = 0. 174 mol/ L, and [ HI ] = 0.507 mol/L.

What is the value of k at 25°C?

In the photosynthesis, green plants convert carbon dioxide and water into glucose ( C6H12O6) according to the following equation:

6 CO2(g) + 6 H2O(l) + 678 kcal= C6H12O6(aq) + 6 O2(g)

A. Is the reaction exothermic or endothermic?

B. What is the value of ∆H for the reaction?

C. Write the equations for the reverse of the reaction, including heat as a reactant or product.

What effect do the listed changes have. On the position of the equilibrium in the reaction of carbon with hydrogen?

C (s) + 2 H2(g) = CH4(g) ∆H= -18 kcal/ mol

A. Increasing temperature

B. Increasing pressure by decreasing volume

C. Allowing CH4 to escape continuously from the reaction vessel

Do the following reactions favor reactants or products at equilibrium?

A. Sucrose (aq) + H2O(l) = Glucose (aq) + fructose (aq) k= 1.4 × 10^5

B. NH3 (aq) + H2O(l) = NH4^+(aq) + OH^-(aq) k= 1.6 × 10^-5

C. Fe2^03(s) + 3 co(g) = 2 Fe(s) + 3 co2(g) k( at 727°C)=24.2

Does entropy increase or decrease in the following processes?

A. After raking your leaves into a neat pile, a breeze blows them all over your lawn.

B. Gasoline fumes escape as the fuel is pumped into your car.

C. Mg(s) + Cl2(g) = MgCl2(s)

Lime ( Cao) is prepared by the decomposition of limestone (caCo3).

A. Does the reaction occur spontaneously at 25°C?

B. Does entropy increase or decrease in this reaction?

C. Would you expect the reaction to be spontaneous at higher temperature?

consider the following reaction :2Al + Cr2O3 = Al2O3 +2cr. what is the mass of Al2O3 that will be produced upon complete reaction of 1.20* 10^21 atoms of Al

a gas container contains 35.0 l at 150 bar determine the volume in l this gas will occupy if it were allowed to expand at atmospheric temperature room temperature

Give the Electronic configuration of titanium